It's not chicken wire, its hardware cloth. Dogs and other predators can dig right through chicken wire. The top of the left side of the pen is covered with chicken wire, but the skirting and the 2 feet up the sides of the chain link is hardware cloth. I couldn't afford to do the top with the hardware cloth at this time, so we chose to put the chicken wire on top, and the hardware cloth on the bottom. My main predator is my own dog lol. She has tried to dig and this has stopped her completely.